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Sunday, May 31, 2015

GSE2 - Lots of Space and One Lovely System

The past week has seen me move well within 1000 light years of my intermediate destination. I'll just keep that under my hat for now though. ;) I have finally passed beyond the COL 359 sectors and have entered the sectors labeled PRU EUQ. There have not been a lot of great systems along the way, though there have been a larger number of star types larger (and hotter) than M.

However, I did come across something I'd never seen before. I dropped out of hyperspace in
COL 359 SECTOR EN-Q B48-2, a system with Two M type stars and two L type. The two M type stars orbited each other at about 85 light seconds so some somewhat tightly. COL 359 SECTOR WA-E D12-89 C orbited them at a few thousand light seconds and COL 359 SECTOR WA-E D12-89 D orbited those three at several tens of thousands of light seconds. It was around COL 359 SECTOR WA-E D12-89 C I found the surprise: four high metal content planets. I'd not found planets around L type stars before.

[gallery columns="2" type="rectangular" size="medium" ids="5102,5103,5101,5104"]

The only really nice system I discovered this past week was COL 359 SECTOR RR-G C25-15. It has a nice assortment of worlds: four high metal content, one gas giant and one terrestrial water world. The terrestrial water world has a very large polar ice cap so isn't quite as boring as pure water worlds with no land masses at all. Perhaps the only issue with this system is the planets orbit two stars with COL 359 SECTOR RR-G C25-15 B being 41k light seconds away, but they are both K types and the water world orbits COL 359 SECTOR RR-G C25-15 A.

[gallery type="rectangular" columns="2" size="medium" ids="5113,5117,5116,5112,5114,5115"]

And that's just about it. Only three other systems made it into my video catalog. Mostly I spent a lot of time flying between stars of multi-star systems. You know, I've heard a lot of other pilots complain about how long it takes to fly between stars in a single system. That was certainly true before the invention of super cruise. But it really doesn't take all that long to get anywhere with super cruise; no more than about 10 minutes no matter the distance crossed.

No, it's true. We all know a gravity well slows super cruise and causes acceleration to fluctuate. But I've watched the chronometer closely on many deep space runs and once away from a star acceleration increases asymptotically. In the latest batch of surveyed systems I had to make several long treks to distant companions. One thing I can confirm from observation is that acceleration while in super cruise eats up more deep space distance per minute the longer it runs.

Using the standard equation v = v0 + at (velocity equals initial velocity plus the result of acceleration multiplied by time,) I ran some of my numbers through the computer. On my way to PRU EUQ YQ-Q B46-5 D 32,000 light seconds from its primary I did two acceleration and two deceleration measurements at the same distance relative to the nearest star. Here are my results:

v0 = 25,332,462,701 m/s at 27k ls
v = 35,075,717,586 at 24k ls
From 25:20:14 to 25:50:15
t = 30 s
a = 324,775,162.83333 m/s²

v0 = 49,165,963,112 m/s at 19k ls
v = 56,360,982,104 m/s at 16k ls
From 26:26:08 to 26:43:10
t = 17 s
a = 423,236,411.29412 m/s²

v0 = 53,962,642,440 m/s at 15k ls
v = 45,868,246,074 m/s at 12k ls
From 26:48:35 to 27:06:46
t = 18 s
a = -449,688,687 m/s²

v0 = 32,377,585,464 m/s at 7.5k ls
v = 21,974,787,171.4 m/s at 4.5k ls
From 27:54:35 to 28:23:14
t = 31 s
a = -335,574,138.47097 m/s²

That's a pretty close correlation there and as you can see acceleration was not constant. There's a 100 million meter per second difference at mid-point. I decided to plot the acceleration curve at 1,000 light second distances starting at 27,000 light seconds from PRU EUQ YQ-Q B46-5 D. Here's the graph of that flight.

[caption id="attachment_5129" align="aligncenter" width="660"]Cobra Velocity Deep Space Run PRU EUQ YQ-Q B46-5 D Cobra Velocity Deep Space Run PRU EUQ YQ-Q B46-5 D[/caption]

As you can see I throttled down about the 1635 second mark and that muffs the deceleration curve. But you can just see a hint of an asymptotic curve starting on the acceleration side of the chart. However, it's not clear enough in only 32,000 light seconds.

That's what I went back to the nav data and did the same thing with on my run to COL 359 Sector RR-G C25-15 B. There was no throttle down during either leg of that super cruise and it was a 42,000 light second distance. Here's the chart for that run.

[caption id="attachment_5130" align="aligncenter" width="660"]Cobra Velocity Deep Space Run COL 359 Sector RR-G C25-15 B Cobra Velocity Deep Space Run COL 359 Sector RR-G C25-15 B[/caption]

You can definitely see the asymptotic curve forming in this graph with the data points near the peak obviously coming faster than on either end. But with this particular graph it might not be apparent to some unless I used a 300,000 light second distance. But there is another way to look at the data other than velocity over time. We can look at it as a function of 1000 light second increments over time. That would answer the question of whether my cobra was indeed crossing 1000 light seconds of deep space more quickly at the midpoint of the run than the ends. Here's that graph.

[caption id="attachment_5131" align="aligncenter" width="660"]1k LS Increments Over Time COL 359 Sector RR-G C25-15 B 1k LS Increments Over Time COL 359 Sector RR-G C25-15 B[/caption]

It should now be plainly obvious to anyone that my Cobra Mark III was indeed gobbling up deep space faster at the mid-point of my run than on the ends. Of course, I'll need a run 10 times that long to prove my ship can cross any distance about 10 minutes. This is just showing you that my premise has merit. Next time I have a companion star a hella long way from its primary, I'll be sure to capture that data for you.

Until then, fly careful!

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